Circular slitting knife and round slitting knife

Problem 1: The short lifespan of corrugated board blades. A : Is the grain size of the grinding wheel adequate? Too coarse a grain size of grinding wheel  shortens the lifespan/performance time of blades. B : Excessive grinding : the grinding interval is too short of the grinding pressure is too high. Problem 2 : The edges of corrugated boards cut by blades show burrs and dents. A : Please check the cutting edge of your blade. Is the cutting-edge sharp enough？ B : The corrugated board is too wet. Problem 3 : Breakage of blades. A : incorrect aseembly e.g. deformed flange plate ; wrong screwing will cause the breakage of blades . B : Unstable swing grinding wheels break the blades ; please check the bearing of the grinding wheels . C : The problem may be caused by collision with other hard objects . Problem 4 : Chips on the cutting edge after the grinding . A : Unstable swing grinding wheels may cause this problem , even break the blades . B : A collision with hard objects may cau…